Leopold Feist (January 3, 1869, New York City – June 21, 1930, Mount Vernon, New York), in 1897 founded and ran a music publishing firm bearing his name that — in the 1920s, at the height of the golden age of popular music — was among the seven largest publishers of popular music in the world. Leo Feist, Inc., ran until 1934.
Feist marketed his publications very aggressively, even by Tin Pan Alley standards. “My Blue Heaven,” written by Walter Donaldson (music) in collaboration with George Whiting (lyrics), became the biggest song in the history of Leo Feist, Inc. Gene Austin recorded it (Victor 20964), selling over five million copies, and Eddie Cantor plugged it in vaudeville and in the Ziegfeld Follies of 1927. It sold over five million copies of sheet music.